30220989 has 8 divisors (see below), whose sum is σ = 40562112. Its totient is φ = 20013600.

The previous prime is 30220961. The next prime is 30220997. The reversal of 30220989 is 98902203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30220989 - 2⁸ = 30220733 is a prime.

It is a super-2 number, since 2×30220989² = 1826616352276242, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30220909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32904 + ... + 33809.

It is an arithmetic number, because the mean of its divisors is an integer number (5070264).

Almost surely, 2^30220989 is an apocalyptic number.

It is an amenable number.

30220989 is a deficient number, since it is larger than the sum of its proper divisors (10341123).

30220989 is a wasteful number, since it uses less digits than its factorization.

30220989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66867.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 30220989 is about 5497.3620037251. The cubic root of 30220989 is about 311.4843450536.

The spelling of 30220989 in words is "thirty million, two hundred twenty thousand, nine hundred eighty-nine".